Cursusinhoud
Python Data Structures
Python Data Structures
1. Mastering Python Lists
Creating Lists in Python: Declaring and Initializing ListsList Indexing in Python: Accessing Elements EfficientlyWorking with Nested Lists in PythonPython List Length: Measuring and Managing List SizeModifying Lists in Python: Updating and Changing ElementsUsing the append() Method: Adding Elements to ListsUsing the insert() Method: Placing Elements at Specific PositionsDeleting Elements in Python Lists: Removing Items SafelyUsing the remove() Method: Deleting Specific Elements from Lists
2. Mastering Python Dictionaries
Creating a Dictionary in Python: Storing Key-Value PairsAccessing Dictionary ValuesAccessing Dictionary KeysAdding Items to a Dictionary: Updating Key-Value PairsUsing the del Keyword: Removing Dictionary EntriesUsing the pop() Method: Deleting Elements with Return ValuesUsing the popitem() Method: Removing the Last Inserted ItemUsing the clear() Method: Emptying a Dictionary Completely
3. Mastering Python Tuples
Creating a Tuple in Python: Defining Immutable Data StructuresAccessing Elements in a Tuple: Indexing TechniqueConcatenating Tuples in Python: Merging Immutable SequencesDeleting Tuples in Python: Removing References to TuplesUpdating Tuples in PythonAdding Items to a Tuple: Alternative Approaches Using ListsCounting Elements in a Tuple: Using the count() MethodFinding Elements in a Tuple: Using the index() Method for Lookup
4. Mastering Python Sets
Creating a Set in Python: Defining Unordered CollectionsUsing the add() Method: Adding Single Elements to a SetUsing the update() Method: Merging Multiple Elements into a SetAccessing Elements in a Set: Iteration and Membership TestingUsing the remove() and discard() MethodsUsing the clear() Method: Removing All Elements from a Set
Using the clear() Method: Emptying a Dictionary Completely
Dictionaries also offer a handy clear() method that removes all items, leaving you with an empty dictionary. Here's how it works.
# Creating a dictionary for book details book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Printing the dictionary before clearing print("Before clearing:", book) # Clearing all items from the dictionary book.clear() # Printing the dictionary after clearing print("After clearing:", book)
Taak
Swipe to start coding
We’ve done a great job working with the authors_books dictionary, but it’s time to say goodbye to it.
- Clear the
authors_booksdictionary. - Use the
clear()method to do this.
Oplossing
Schakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande optiesWas alles duidelijk?
Bedankt voor je feedback!
Sectie 2. Hoofdstuk 8
Using the clear() Method: Emptying a Dictionary Completely
Dictionaries also offer a handy clear() method that removes all items, leaving you with an empty dictionary. Here's how it works.
# Creating a dictionary for book details book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Printing the dictionary before clearing print("Before clearing:", book) # Clearing all items from the dictionary book.clear() # Printing the dictionary after clearing print("After clearing:", book)
Taak
Swipe to start coding
We’ve done a great job working with the authors_books dictionary, but it’s time to say goodbye to it.
- Clear the
authors_booksdictionary. - Use the
clear()method to do this.
Oplossing
Schakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande optiesWas alles duidelijk?
Bedankt voor je feedback!
Sectie 2. Hoofdstuk 8
Schakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties